I've been using Windows Phones ever since Windows Phone 8.1, and great features like Cortana were introduced.
To scan qr codes in Windows Phones, you need to access the Bing Vision app, which was accessible via the search button. It was never part of the main apps list.
Now that we have Cortana, I can't seem to find and use Bing Vision app anywhere.
I can't seem to find it, even by using Cortana to search for it.